Indian Journal of Science and Technology

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Background/Objectives: The objective of this paper is to a simple but very effective method to achieve the predictive direct compensation current control for three phase grid-connected Wind Turbine (WT) and Photo-Voltaic (PV) inverters in micro-grid. Methods/Statistical Analysis: Our proposed grid-connected power inverter for PV consists of a switch mode DC-DC boost converter and Pulse-Width Modulation (PWM) inverter. The proposed control method is comprised of the Advance Synchronous Reference Frame (ASRF) method. Findings: The control method on PV designed to eliminate main harmonics and also is responsible for the injection power to the grid. The novel approach is able to increase the inverter output current around 8 times of conventional one. Applications/Improvements: The simulations for threephase Bridge type inverter have been done in MATLAB/Simulink. To validate the simulation results, a scaled prototype model of the proposed inverter has been built and tested.

Keywords

Distributed Generation (DG), Grid-connected Inverter, Micro-Grid, Photovoltaic, Power Quality, Wind Turbine.
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